SAT Math 1-3

Question 1

A line in the xy plane passes the origin and has a slope of 1/7. Which points lies on the line?

Accepted Answer

(14,2)

Question 2

If 3x - y = 12, what is the value of 8x/2y?

Accepted Answer

212

Question 3

If t > 0 and t2 - 4 = 0, what is the value of t?

Accepted Answer

2

Question 4

According to the system of equations, x + y = -9 and x + 2y = -25, what is the value of x?

Accepted Answer

7

Question 5

For i= √-1, what is the sum (7 + 3i) + (-8 + 9i) ?

Accepted Answer

-1 + 12i

Question 6

3x + 4y = -23 2y-x = -19 What is the solution (x,y) to the system of equations?

Accepted Answer

(3, -8)

Question 7

If x-1/3 =k and k= 3, what is the value of x?

Accepted Answer

10

Question 8

In a right triangle, one angle measures x°, where sin x° = 4/5. What is cos (90° - x°) ?

Accepted Answer

4/5

Question 9

If a/b = 2, what is the value of 4b/a?

Accepted Answer

2

Question 10

If a = 5√2 and 2a = √2x, what is the value of x?

Accepted Answer

100

Question 11

(x²y - 3y² + 5xy²) - (-x²y + 3xy² - 3y²)

Accepted Answer

2x²y + 2xy²

Question 12

g(x) = ax² + 24 a is a constant and g(4) = 8. What is the value of g(-4)?

Accepted Answer

8

Question 13

(ax+2)(bx+7)=15x2+cx+14 for all values of x, and a+b=8, what are the two possible values for c?

Accepted Answer

31 and 41

Questions 13