On a number line, a number, b, is located the same distance from 0 as another number, a, but in the opposite directior The number b varies directly with the number a. For example b
22 whena=-2Which equation represents this
direct variation between a and b?
Ob=-a
Ob--a
Ob-a=0
O b-a) =0

Mr. walker gave his class the function f(x) = (x + 3)(x + 5). four students made a claim about the function. each student’s claim is below. jeremiah: the y-intercept is at (15, 0). lindsay: the x-intercepts are at (–3, 0) and (5, 0). stephen: the vertex is at (–4, –1). alexis: the midpoint between the x-intercepts is at (4, 0). which student’s claim about the function is correct?

This is the number of parts out of 100, the numerator of a fraction where the denominator is 100. submit

What is the difference between the points (4, 7) and (4, -5)? a. 0 units b. 2 units c. 4 units d. 12 units