9th grade algebra final review

Expressions, equations and functions

100

7 + 3^2 * 2

What is 25

200

12 + 4x when x = 1.5

What is 18

300

write the expression for the sum of 19 and the cube of a number x

What is 19 + x^3

400

check whether the given number is a solution 2+3x=10 ;x= 2

What is not a solution

500

Tomatoes cost $1.29 per pound and peppers cost $3.99. Find the total cost of 5 pounds of tomatoes and 2 pounds of peppers.

What is $14.43

Solving Linear equations

100

-10=-10+7m

What is m=0

200

(m/9)-1=-2

What is m=-9

300

7(9+k)=84

what is k=3

400

-18-6k=6(1+3k)

what is k=-1

500

5n+34=-2(1-7n)

what is n=4

writing linear equations

100

Write the line that goes through the points (0,1) and ( 2,4)

y=3/2x+1

200

If the slope of a line is 4 and it goes through the pt ( 3,1), what is the equation of the line in point-slope form?

(y-1)=4(x-3)

300

If a line goes through the pt (2,8) and has a slope of 2, what is the equation in slope-intercept form?

What is y=2x+4

400

What would be the equation if you changed 6x+5y=-15 into slope-int form?

What is y=-(6/5)x-3

500

If a line goes through the pt ( 2,5) and has an undefined slope, what is the equation of the line?

What is x=2