Answer: y= -1x+b, or -x+b
Step-by-step explanation:
The slope is 1 because you have to plug in the formula, y2-y1/x2-x1. -8-(-4)/5-1. This is equal to -4/4, which is -1.
I believe the answer is A. 40.
Theres not enough information to properly answer this.
F(x) = x² + x - 20 = x² + 5x - 4x - 20 = x(x + 5) - 4(x + 5) = (x + 5)(x - 4)
f(x) = 0 ⇔ (x + 5)(x - 4) = 0 ⇔ x + 5 = 0 or x - 4 = 0 ⇒ x = -5 or x = 4
Answer: C. x = -5 and x = 4.
