Envision Algebra

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• 15 mph

• 30 mph

• 90 mph

Answer explanation

Solve for x if :
f(x) = 35
f(x) = 2x + 10

• 35

• 12.5

• 2

• 10.5

Solve for f(10):
f(10) = -x - 5

• 15

• -5

• -15

• 50

What is the value of x in:
f(3) = 2x + 1

• 3

• 2

• 1

• 0

What is the value of x in:
f(4) = 3x - 1

• 11

• 4

• -1

• 0

What does x equal in the function:
f(-11) = 5x + 1

• -54 

• 5

• 1

• -11

Solve for f(5):
f(5) = -x + 4

• 9 

• 1

• -1

• -9

5c – 15 = 2c + 6

• 7

• -3

4 (x + 4) = 2 (2x +8)

• 8 ≠ 10 no solution

• x = 16

• 4=4 infinite solutions

• 16=16 infinite solutions

Translate into an equation:

One less than 4 times a number is 11

• 1-4n=11

• 4n-11=1

• 1-11=4n

• 4n-1=11