Need to find x?
3-x= -4

x = 7

Step-by-step explanation:

3 -7 =-4

x = 7

Step-by-step explanation:

First subtract 3 from both sides to get -x = -7. Now divide -1 from both sides to get x = 7.

Hope it helps!

the function makes a strait line horizontally with no x intercept but a y intercept at 9.

b

step-by-step explanation:

the equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (0, 4) and (x₂, y₂ ) = (3, - 5) ← 2 points on the line

m = = = - 3

with m = - 3 and (a, b) = (3, - 5), then

y - (- 5) = - 3(x - 3), that is

y + 5 = - 3(x - 3) → b