Question

Write an equation to match each graph:

Answer 1

Answer:

y = x^2 + 2x - 3

Step-by-step explanation:The roots are -3 and 1. To write a quadratic in factored form, you must work backwards. x = -3; x + 3 = 0. x = 1; x - 1 = 0. The factored form of the quadratics is y = (x + 3)(x - 1). To write it in standard form multiply. The equation is y = x^2 + 2x - 3.

Answer 2

Answer:

Oblique downward straight line expression:

$y=-x$($x\geq 1$)

Straight line expression:

$y=-x+2$($x\geq 1$)