SOLUTION: Graph the following equation? calculate the slope, x-intercept, y-intercept and label the intercepts on the graph. y = x + 3
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Question 197067This question is from textbook
: Graph the following equation? calculate the slope, x-intercept, y-intercept and label the intercepts on the graph. y = x + 3
This question is from textbook
Found 2 solutions by Mathtut, solver91311:
Answer by Mathtut(3670) (Show Source): You can put this solution on YOUR website!
y=x+3 is in intercept form y=mx+b where m is the slope and b is the y intercept
:
so m(slope)=1.....y intercept is 3: which is coordinate (0,3)
:
x intercept is found by setting y equal to zero
:
0=x+3--->x=-3.....coordinate (-3,0) is x intercept
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
Step 1: Pick a value, any value, for x and substitute this value for x in your equation.
Step 2: Calculate the value of y for the selected value of x.
Step 3: Create an ordered pair (x,y) using the selected and calculated values from steps 1 and 2.
Step 4: Plot the point represented by your ordered pair on your graph.
Step 5: Repeat steps 1 through 4 using a different value for x.
Step 6: Draw a straight line all the way across your graph through the two plotted points.
Your equation is already in slope-intercept form, namely:
where 
is the slope and 
is the y-coordinate of the x-intercept.
The slope is the value of the coefficient on x. In this case, since there is no specific coefficient shown, the coefficient is understood to be 1.
The x-intercept is the point (0,b)
The y-intercept is the point (a,0) where a is the value of x that makes y = 0, so:
John
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