What is the intersection when you graph the following equations: y = 2x+4
y = x2-4
y = x+8

(4, 12)

Step-by-step explanation:

Hello!

Since two of the equations are linear we can use those to find where all three intersect

The two linear equations are y = 2x+4 and y = x+8

We know this because they do not have a square value and they are in slope intercept form which is linear.

Since y is equal to both of them that means they are equal to each other

2x + 4 = x + 8

We can now solve it algebraically

Subtract x from both sides

x + 4 = 8

Subtract 4 from both sides

x = 4

We now have the x coordinate

To find y we put the x coordinate into either of the two original equations and solve to y

y = 4 + 8

y = 12

We now know the point is (4, 12)

The answer is (4, 12)

Hope this helps!

70

step-by-step explanation:

2*5=10

4*15=60

60+10=

70