SAT no calculator

The graph of the linear function f is shown. Which equation defines f ?

• f(x) = x + 1

• f(x) = x - 1

• f(x) = -x + 1

• f(x) = -x - 1

The graph shown represents the possible combinations of 3-credit and 4-credit classes a student can enroll in to complete an associate’s degree program. Based on the graph, if a student enrolls in eight 3-credit classes, how many 4-credit classes will the student need to enroll in to complete this program?

• 8

• 9

• 3

• 16

The graph of the polynomial function f, where y = f(x), has x-intercepts of ( -6 , 0 ) and ( 6 , 0 ). Which of the following must be true?

• f(-6) = 0

• f(-6) = 6

• f(6) = -6

• f(0) = -6

y = 4x + 6

-5x - y = 21

What is the solution to the given system of equations?

• ( - 5/3 , - 2/3 )

• ( 3 , 18 )

• ( -3 , -6 )

• ( 15 , 66 )

I x - 10 I = 0

What are all possible solutions to the given equation?

• 0

• 10

• -10 and 10

• -10

The given equation relates the positive numbers q, r, and s. Which equation gives r in terms of q and s, when ?

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• 
• 
• 

In the relationship between variables x and y, each increase of 1 in the value of x decreases the value of y by 2. When x=0, y=5. Which equation represents this relationship?

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• 
• 
• 

An architect is asked to construct an opening in a wall in the shape of a parabola. The blueprint of the architect’s design is shown. The formula , where k is a constant, can be used to determine the height y, in feet, of the opening at a horizontal distance of x feet from the left side of the opening. Based on the architect’s blueprint, what is the value of k ?

• 2

• 1/2

• 4

• 1/4

An isosceles right triangle has a hypotenuse of length 4 inches. What is the perimeter, in inches, of this triangle?

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• 
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How many solutions does the equation have?

• Infinitely many

• Zero

• Exactly one

• Exactly two