Question

The y-intercept of the line whose equation is x - y = 7 is A.) 7 B.) 1 C.) -7

Answer 1

Answer:

C.) -7 is the right answer.

Step-by-step explanation:

Given is an equation of a line

$x-y =7$

Write in slope intercept form as

$y =x-7$

This is of the form

$y = mx+b\\m=1\\b=-7$

y intercept = b=-7

Hence option C is the right answer.

Answer 2

C) -7

Explanation: If you rearrange the equation into slope-intercept form, you get y = x - 7 so -7 is the b value (y intercept)