Question

What is the y-intercept of the line given by the equation below? y = 8x 7
a. (0, 7)
b. (0, 8)
c. (8, 0)
d. (7, 0)

Answer 1

If the point is a y-intercept the x value would be zero. 8 is the slope, 7 is the y-intercept y=mx+b (0,7)

Answer 2

The y-intercept of the line is (0,7).

Given:

Equation of the line

y = 8x + 7

To find:

The y-intercept of the line from the given line equation.

Solution:

Equation of the line

y = 8x + 7

The slope-intercept form of the line is given by:

y = mx + c

Where:

m = slope of the line

c = intercept on the y-axis

y = 8x + 7

On comparing the equation of a line with the slope-intercept form of the line:

m = 8 , c = +7

The slope of the line = 8

The y-intercept of the line = (0,7)

The y-intercept of the line is (0,7).

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