Midterm Review

Random

100

How can you find the solution to a system of equations?

Look where they intersect on Desmos

200

What would you write if you got the solution 7=10

no solution!!

300

Which letter always represents slope?

m

400

What symbol always goes by infinity when writing in interval notation?

a parenthese

500

When solving an inequality, what do you do when you multiply or divide both sides by a negative number?

flip the inequality sign

Inequality

100

What is the solution to 3(3+x)>6?

x>-1

200

Solve the inequality:

-3(x+1)>6

x<-3

300

What is the solution to 9-3x>6 in interval notation?

(-∞ ,1)

400

Write a graph and give the interval notation that represents the solution to the inequality below:

-(x+1)>6

(-∞, -7)

<----------7

500

What is the y-intercept of the following inequality?

3x-6y<12

b=-2

Systems

100

Find the solution to the following system:

2x+y=5

3x-2y=4

(2,1)

200

What is the x value of the solution to the system of equations? 

x+y=1

5x+3y=-3

-3

300

What is the y value of the solution to the system of equations?

5x+2y=9

3x-2y=-1

2

400

What is the y value of the solution to the system of equations?

-2x+y=4

y=2x+4 

infinite solutions

500

What is the y value of the solution to the system of equations? 

y=-10x+4

y=-10x+6

no solution

Word Problems

100

You bought a Pelican's baseball ticket for $15 and some ice cream cones for your friends for $2.50 each. You spent a total of $25. How many ice cream cones did you by?

4

200

311 St. James Senior go to Disney on the Senior Trip. The students are able to fill 9 buses leaving 5 students to ride a van. How many students were on each bus?

34

300

Lissette is taking a bus to visit her aunt. The function f(x)=375-55x gives the distance she has left to travel after x hours on the bus. What is f(4), the distance she has left to travel after riding for 4 hours on the bus?

155 miles

400

Mrs. Green has at least $50. 

Write the above statement in the form of an inequality.

g≥50

500

A dog and a cat together cost $600. The dog costs double the cat. How much do they each cost?

dog: $400, cat: $200

Slope

100

List a slope steeper than that of the following equation:

y=6x+3

7, 8, 9, any number greater than 6

200

What is the slope formula?

m=(y₂-y₁)/(x₂-x₁)

300

Find the slope between the two point:

(8, 2) and (9, 8)

m=6

400

Find the slope between the two points:

(9, 4) and (18, 4)

m=0

500

Find the slope between the two points: 

(9, 4) and (9, 10)

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