At which points are the equations y = x2 + 5x − 2 and y = x + 1 equal?

common points will be [(-2+√7), (-1 + √7)] and [(-2-√7), (-1 -√7)]

Step-by-step explanation:

we have to find the point at which the equations are equal.

y = x² + 5x - 2 and y = x + 1

Now we Equate both the equations the point of intersections of both the equations

x² + 5x - 2 = x + 1

x² + 5x - x - 2 = 1

x² + 4x = 1 + 2

x² + 4x = 3

x² + 4x + 4 = 3 + 4

(x + 2)² = 7

x + 2 = ±√7

x = -2 ± √7

Since y = x + 1

Therefore, y = (-2 ± √7) + 1

y = -1 ± √7

Therefore, common points will be [(-2+√7), (-1 + √7)] and [(-2-√7), (-1 -√7)]

you probably already have the answer but anyways it's b. 15.0

step-by-step explanation: