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Question 1149012: please explain when working with inverses
f(x)=15/8x+3/2 is f-1(x)=8/15x-4/5
I don't understand why its 4/5.
thank you
Click here to see answer by greenestamps(13195)

Question 1150302: the name of the line that is perpendicular to x=8 and goes through the point (5,9)

Click here to see answer by greenestamps(13195)

Question 1150302: the name of the line that is perpendicular to x=8 and goes through the point (5,9)

Click here to see answer by ikleyn(52747)

Question 1150302: the name of the line that is perpendicular to x=8 and goes through the point (5,9)

Click here to see answer by Alan3354(69443)

Question 1151662: Solve each system by graphing
y <= 3x - 2
y >= 1 - x

Click here to see answer by ikleyn(52747)

Question 1152006: Write the equation of the line that passes through the point (2,-1) and has a slope of -3
Click here to see answer by MathLover1(20849)

Question 1152015: Hello!! I need help with this problem, it is part of a graph.
I am supposed to:
Rewrite using the slope-intercept for
Then graph the inequality
And last find if the points (4, 4) satisfy the inequality

Using this equation
-1/2y-2=x-4

Click here to see answer by MathLover1(20849)

Question 1152062: Hello!!
can I have help with this problem,
“Use algebraic symbols to represent the following: the sum of a number and two, multiplied by four, equals twenty-three, plus the number”

Also can you explain how you got the equation? I have A LOT of trouble with these!

Thanks
Click here to see answer by Alan3354(69443)

Question 1152136: o the nearest hundredth, what is the distance between point (-6, -1) and point (4, 3)?

Click here to see answer by MathLover1(20849)

Question 1152179: write the slope-intercept (y=mx+b) form of
m= 1/2 b= -3
and
m=2 (-1, 3)

Click here to see answer by MathLover1(20849)

Question 1152348: Graph the following equations using the slope-intercept method. Draw the y-intercept in yellow. Draw at least one additional point in red using the slope:
y = -2x + 2
y = 3/4x - 1
When we have zero on the bottom of the slope, we call that no slope because of the rule that zero can never be in the denominator of a fraction. An example of this would be a line that goes through the points (2, -3) and (2, 4). If you plotted these points, what would this graph look like? What should this equation be?
Thank you

Click here to see answer by MathLover1(20849)

Question 1152698: If 800 feet of fence are used to enclose a rectangular pen, the resulting area of the pen is A(x)=x(400-x), where x is the width of the pen. Is A(x) a quadratic function? What is the maximum area of the pen? What are the dimensions of the maximum pen?
Click here to see answer by josgarithmetic(39613)

Question 1152878: Created two sets of data. The rigth Column Will have a correlation near -1 and the one on the left correlation of close to zero
Click here to see answer by Alan3354(69443)

Question 1152981: 1.which is a equation of the line that passes through the points (-6,-15) and (3,-6)
A. y=-3x_15
B. y=-6x_15
C.y=x_9
D.y=4x+9
Click here to see answer by Cromlix(4381)

Question 1152981: 1.which is a equation of the line that passes through the points (-6,-15) and (3,-6)
A. y=-3x_15
B. y=-6x_15
C.y=x_9
D.y=4x+9
Click here to see answer by josmiceli(19441)

Question 1152981: 1.which is a equation of the line that passes through the points (-6,-15) and (3,-6)
A. y=-3x_15
B. y=-6x_15
C.y=x_9
D.y=4x+9
Click here to see answer by MathLover1(20849)

Question 1152981: 1.which is a equation of the line that passes through the points (-6,-15) and (3,-6)
A. y=-3x_15
B. y=-6x_15
C.y=x_9
D.y=4x+9
Click here to see answer by MathTherapy(10549)

Question 1152982: If p represents the world population in billiond and y represent the number of years after 1960, then the world oopulation after 1960 can be closely approximated by the equation p=0.077y+ 3.04. Which number most closely approximates the predicted population of the world, in billions, in the year 2015?
A.4.20billion
B.6.51 billion
C.7.28 billion
D.14.59 billion
Click here to see answer by josmiceli(19441)

Question 1153005: Which relationship would most likely show a positive association?
A. The distance a car traveled and the number of gallons of gas remaining in the car
B. The speed a train travels and the time it takes for it to reach its destination
C.the amount of data storage in a computer and the number of keys on a keyboard
D.the number of tickets sod for a football game and the number of refreshment sold at the game
Click here to see answer by MathLover1(20849)

Question 1153009: The boiling temperature of a solution of calcium chloride dissolved in 2oo millilters of water changes due to the number of grams of calcium chloride dissolved in the solution.If T represents the boiling temperature of the solution in degrees Celsius (*C) and g represents the number if grams of calcium chloride in thr solution, then this relationship can be modeled by the equation r=99.7+0.026g. Which temperature is closest to th expected boiling temperature of solution that has 100grams of calciumchloride dissolved in 200 milliliters of water.
A.100.0*C
B.102.3*C
C.104.9*C
D.125.7*C
Click here to see answer by MathLover1(20849)

Question 1153069: For what value of x will the line passing through the points A(x+14, 5) and B(2−3x, 8) be vertical?

Click here to see answer by ikleyn(52747)

Question 1153195: Which equation represents a linear function?
A. y=1/×
B. y= 2×-3
C. y= 5×^3+8
D. y= ×^2+2×+1
Click here to see answer by josgarithmetic(39613)

Question 1153195: Which equation represents a linear function?
A. y=1/×
B. y= 2×-3
C. y= 5×^3+8
D. y= ×^2+2×+1
Click here to see answer by ikleyn(52747)

Question 1153193: Which equator is nonlinear?
A. y=5x+ 10
B. y=5/×
C. y= 3×
D y=7
Click here to see answer by Alan3354(69443)

Question 1153193: Which equator is nonlinear?
A. y=5x+ 10
B. y=5/×
C. y= 3×
D y=7
Click here to see answer by ikleyn(52747)

Question 1153194: The equation y=20×+100 represents the membership at a local gym where y represents the total number of members and x reresents the number of weeks the gym has been open.what does the y_intercept represent in this equation?
A. The gym sold 100 memberships prior to opening.
B. The gym sold 200 memberships prior to opening.
C. The gym gets 100 new members per week.
D. The gym gets 20 new members per week.

Click here to see answer by josgarithmetic(39613)

Question 1153197: Bacteria grow in colonies over time. Which table shows growth of bacteria colonies that can be modeled by a linear graph?
A.Time (in hours) 1,2,3,4
Number ofcolonies 1,4,9,16
B. Time (in hours) 1,2,3,4
Numbers of colonies 5,10,15,20
C.Time (in hours) 1,2,3,4
Numbers of colonies 1,16,81,256
D. Time (in hours) 1,2,3,4
Number of colonies 5,25,125,625
Click here to see answer by josgarithmetic(39613)

Question 1153198: Which of the following tables represents a linear relationship between x and y.
A.x 2,5,8,11
y 1,2,4,8
B.x 2,5,,8,11
y -1,0,2,5
C. x 2,5,8,11
y -4,1,2,3
D. x 2,5,8,11
y -4,-2,0,2

Click here to see answer by josgarithmetic(39613)

Question 1153724: find the midpoint of the segment with endpoint (5, -10) and (9, -2)
Click here to see answer by ikleyn(52747)

Question 1153786: 2x+y=0
X+4y=-7
Click here to see answer by josgarithmetic(39613)

Question 1153823: Graph the equation
x=−0.5

Click here to see answer by MathLover1(20849)

Question 1153844: Slope -2 passing through (-5,-5) type point slip form of line and type slip intercept form of line
Click here to see answer by MathLover1(20849)

Question 1154088: Sketch the graphs of y=cos x and y=sin x from x=0 to x= pi/calculate the area enclosed
(a) by the curve and the x-axis
(b) by the curve and the y-axis
Click here to see answer by Alan3354(69443)

Question 1154144: Find the equation of the line with the slope -2 and passing through (5,4)
Click here to see answer by mananth(16946)

Question 1154869: Graph the exponential function y=3(2)^x where 0< x <5
Click here to see answer by Alan3354(69443)

Question 1155240: 4x+2y=12 into slope intercept form

Click here to see answer by Alan3354(69443)

Question 1155240: 4x+2y=12 into slope intercept form

Click here to see answer by Theo(13342)

Question 1155275: Jason purchased a car for $26,900. According to his research, this make and model of car loses all of its marketed value after 12 years. If this car depreciates in a straight line form, what are the coordinates of the depreciation equation?
X-intercept y-intercept
Click here to see answer by ikleyn(52747)

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