Desmos for Digital SAT Math: Intercepts

What is the first step in using Desmos to find the intercepts of a function?

• Click on the graph

• Zoom in on the graph

• Select the correct axis

• Type the equation into Desmos

When finding the x-intercept of the function f(x) = 7x - 84 using Desmos, what is the correct intercept?

• (12, 0)

• (7, 0)

• (0, 12)

• (0, -84)

Why is it important to pay attention to whether a question asks for an x-intercept or a y-intercept?

• It affects the equation input

• Because the graph looks different

• It changes the graph's color

• To avoid getting the wrong answer

What is the y-intercept of the function f(x) = -8 * 2^x + 22 when using Desmos?

• (0, 0)

• (0, 14)

• (0, -8)

• (0, 22)

In the final example, what is the y-intercept of the function G(x) = 11 * (1/12)^x?

• (0, 0)

• (0, 12)

• (0, 11)

• (0, 1)