Question

What is the x-intercept of the straight line
having slope 4 and y-intercept 5 ?

Answer 1

well you simply solve the equation using 0 as y, it comes out to 0 = 4x + 5, minus 5 to each side, and you get 4x=-5, so x = -5\4

Answer 2

Plug in the information to get the following slope-intercept equation: \[y=4x+5\]To find the x-intercept, you must solve for x. We can do this by setting y equal to 0:\[0=4x+5\]Now subtract 5 from each side:\[-5=4x\]or\[4x=-5\]Now we use division to solve for x.\[x=-5/4\]\[x=-1.25\]