How do you find the x intercepts of #y = 2x + 5#?

1 Answer
Mar 20, 2018

Answer:

#color(blue)("x-intercept" = -5/2#

Explanation:

The x-intercepts are where the graph crosses the x-axis, and the y-intercepts are where the graph crosses the y-axis.

In the same way, the x-axis is also the line "y = 0".

Given : #y = 2x + 5#

For getting x intercept, make #y = 0# in the given equation.

#2x + 5 = 0#

#2 x = -5# or #color(blue)("x-intercept" = -5/2#

Similarly, # "y- intercept is obtained by making " x = 0#

#y = 0 + 5 = 5#

graph{2x + 5 [-10, 10, -5, 5]}