Which of these systems of equations has infinitely many solutions? Explain how you know.
a. y = 3x – 6
y = 3(x - 2)

b. y = 5x +10
y = -5x + 10

c. y = 6x +18
y = 6x - 18

d. y = 3x + 12
y = 3(x + 9)

Part a: select all of the ordered pairs that are located on the graph of the equation. part b: does the graph of the equation represent a function? select all correct answers for part a and one answer for part b.

What happens to the area as the sliders are adjusted? what do you think the formula for the area of a triangle is divided by 2?

What is negative 3/9 times negative 2/8 ?