What is the y-intercept of a line that has a slope of 3 and passes through point (–1, –7)? a.–10 b.–4 c.3 d.7

B . -4

Step-by-step explanation:

The equation of line passing through point (a,b) and having slope m is given by :-

Given : Slope of line= 3

Point = (-1,-7)

Now, the equation of line passing through point (-1,-7) and having slope 3 is given by :-

To find the y-intercept , put x=0 , we get

Hence, the y-intercept of a line that has a slope of 3 and passes through point (-1, -7) = -4

a

step-by-step explanation:

-7

step-by-step explanation:

x^2 + 18x + 74 = (x + 9)^2 - 81 + 74

= (x + 9)^2 - 7.

so q = -7.