x y

Question

-2 -5
0 -1
1 1
2 3

A. Graph the ordered pairs.



B. Is the function linear? Explain.

C. Write a rule for the ordered pairs in terms of x and y.

D. What is the value of y when x = 10?

Answer 1

B. does it have constant slope?
(-1+5)/(0+2) = 4/2 = 2
((1+1)/(1-0) = 2/1 = 2
(3-1)/(2-1) = 2/1 = 2
:)
slope, m = 2)

C. y = mx + b
so y = 2x-1

D. y = 2(10)-1 = 19