Equations and Inequalities Test

2x + 5 = -17

• x = -6

• x = -12

• x = 11

• x = -11

The greatest weight a truck can carry is 1,600 pounds. The truck is loaded with a piano that weight 400 pounds and other boxes that weight 50 pounds each. Which inequality represents all possible values of x , the number of boxes that can be loaded into the truck?

• 50x + 400 ≤ 1,600

• 50x + 400 ≥ 1,600

• 400x + 50 ≤ 1,600

• 400x + 50 ≥ 1,600

What inequality does the number line graph represent?

• x ≥ 3

• x > 3

• x < -3

• x ≤ -3

In the equation x + 7 = 12 , what should you do to isolate the variable?

• Subtract 7 from both sides.

• Add 7 to both sides.

• Multiply both sides by 7.

Mario’s Pizza charged $7 for a medium pizza plus $0.75 per additional topping.

x: number of toppings y: cost of pizza

Write the equation for the cost of the pizza in slope-intercept form.

​ (a)  

• Mario

If b=6 and m=3, what is the correct slope intercept equation? (a)  

• y=3x+6

• none

• y=3x-6

• y=6x+3

The slope parallel to the equation f(x)=5x-10 is (a)  

• 5

• -5

• -10

• 15

Momin can currently bench 150 lbs. Write an equation to determine how much he can bench in t months if he can bench 15 more each month.

Mathematical Equivalence

ON

If m=3 and b=6, what is the correct slope intercept equation?

Mathematical Equivalence

ON

Which choice describes the step needed to isolate the variable?

• Divide both sides by 11

• Multiply both sides by 11.

• Add 11 to both sides.

• Subtract 11 to both sides.