Question

For the function rule y = -2x - 3, provide the x-y coordinates of the y-intercept and the x-intercept. Show your work.

Answer 1

The y intercept is where the line crosses the y axis, this is also when x=0
the x intercept is where the line crosses the x axis, this is also when y=0

to find them, set to zero each and find the other value

y intercept, set x=0
y=-2(0)-3
y=0-3
y=-3
y intercept is y=-3 or (0,-3)

x intercept is when y=0
0=-2x-3
add 3
3=-2x
divdie by -2
-1.5=x
x intercpet is (-3/2,0) or x=-3/2