SOLUTION: how do you write an equation off of a graph in slope intrcept form: With on the y-axis it hits -3 on the x-axis it hits 1.5

Question 119060: how do you write an equation off of a graph in slope intrcept form:
With on the y-axis it hits -3 on the x-axis it hits 1.5
Answer by checkley71(8403) (Show Source): You can put this solution on YOUR website!
Y=mX+b WHERE m=SLOPE & b=THE Y INTERCEPT.
HITTING THE Y AXIS @ -3 IS THE POINT (0,-3).
HITTING THE X AXIS @1.5 IS (1.5,0).
USING THESE TWO SETS OF POINTS WE FIND THE SLOPE (Y2-Y1)/(X2-X1)
SLOPE=(0+3)/(1.5-0)=3/1.5=2 WHICH IS THE SLOPE.
NOW WE USE ONE SET OX (X,Y) VALUES & THE SLPE TO FIND (b) THE Y INTERCEPT.
-3=0X+b
-3=b
B=-3 WHICH IS THE Y INTERCEPT.
THUS WE HAVE THE EQUATION:
Y=2X-3
(graph 300x200 pixels, x from -6 to 5, y from -5 to 5, y = 2x -3).
RELATED QUESTIONS
How do you write the correct equation in slope intercept form? A line perpendicular to... (answered by jerryguo41)

ok so im working with slopes and i just keep getting everything confused and im going a... (answered by Alan3354)

I have no idea how to do this question. A projectile so shot from a platform 100 feet... (answered by ankor@dixie-net.com,vleith)

How do you compose an equation from a quadratic graph? The vertex is (-1,-9) The... (answered by scott8148)

A player hits a baseball at a 45 degree angle with the ground with an initial velocity of (answered by josmiceli)

A baseball is hit from a height of four feet off the ground. Its height 'h' (in feet)... (answered by richwmiller)

Write an equation of the line in slope-intercept form. A line graphed on a coordinate... (answered by josgarithmetic,MathTherapy,greenestamps)

Graphing an equation using the slope and intercept of y = 4/3x + 2 I know 4/3 is the... (answered by nerdybill)

Owners of a recreation area are filling a small pond with water. They are adding water at (answered by ikleyn)