Question

Relationships and Equations Homework

For #1–3, evaluate to find the value of y. Show your work.
y=4x-7

If x=8, what is y?



If x=3, what is y?



y=2x2

If x=3, what is y?




If x=5, what is y?





y=(2+x)2

If x=1, what is y?




If x=3.5, what is y?



For #8–15, write < , > , or = to make each statement true.

2.4 2.8
53 1.666….
1.43 .296
92 4.500
5.62 5.602
0.32 0.032
314 318
3437 3435

Answer 1

Explanation:

If x=8, y = 4(8) - 7 = 25

If x=3, y = 4(3) - 7 = 5

If x=3, y = 2(3^2) = 18

If x=5, y = 2(5^2) = 50

If x=1, y = (2+1)^2 = 9

If x=3.5, y = (2+3.5)^2 = 30.25

2.4 < 2.8

53 > 1.666…

1.43 > .296

92 > 4.500

5.62 > 5.602

0.32 > 0.032

314 < 318

3437 > 3435