Wednesday, June 1, 2022

What is the Y-Intercept? Practice Test for Finding B in a Linear Equation

Linear equations can be written in y=mx+b format in which the constant (b) is where the line crosses the x-axis, which is also known as the y-intercept. This free practice test provides opportunities to practice finding the y-intercept when given data in various formats. When designing this resource, I used adaptive mode in which the correct answers can be found on the slide immediately following the slide with the question.

Directions

  1. Click on the first graphic to enlarge to full screen.
  2. Write your answers on a sheet of paper.
  3. Click on the slide or on the next thumbnail at the bottom of the screen to advance to the next slide.
  4. Check your answers.
  5. Repeat the practice test if you need to review.

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Y-Intercept Title Slide with a Large Capital Letter B on the Left Side

Created by Katrena - All rights reserved.

What is the y-intercept for y=5x+8?

8 is the y-intercept for y=5x+8.

y=-6x+2  What is the y-intercept?

2 is the y-intercept for y=-6x+2

y=x-10  What is the y-intercept?

-10 is the y-intercept for y=x-10

y=7  What is the y-intercept?

7 is the y-intercept for y=7. (m is 0)

y=7/8 x  What is the y-intercept?

The y-intercept of y=7/8 x is 0. (y=7/8 x + 0)

y=-3/4 x+9  Where does the line cross the y-axis?

9 is where the line crosses the y-axis for y=-3/4x + 9.

y=-5x-20  Where does the line cross the y-axis?

-20 is where the line crosses the y-axis for y=-5x-20

y=7/2x-2  Where does the line cross the y-axis?

The line crosses the y-axis for y=7/2x-2 at -2.

What is the y-intercept for the following x column: -5, 0, 5, 10; y column: 1, 2, 3, 4

The y-intercept is 2.

What is the y-intercept for the following Column x: 8, 4, 0, -4; Column y: 5, 8, 11, 14

The y-intercept is 11.

Where will the line cross the y-axis for the following: X Column is 0, 4, 8, 12 Y Column is 3, 2, 1, 0

The line will cross the y-axis at 3

Where will the line cross the y-axis for the following: X Column: -10, -7, -4, 0; Y Column: 6, 0, -6, -12

The line will cross the y-axis at -12.

Where will the line cross the y-axis for the following: X Column: -1, 0, 1, 2; Y Column: -3, 0, 3, 6

The line will cross the y-axis at 0

What is the y-intercept? A graph shows a line with the following linear equation: x+2

The y-intercept is 2

What is the y-intercept? A graph shows a line with the following linear equation: 3x+5

The y-intercept is 5

What is the y-intercept? A graph shows a line with the following linear equation: -x-2

The y-intercept is -2

Where does the line cross the y-axis? A graph shows a line with the following linear equation: x+7

The line crosses the y-axis at 7

What is b? A graph shows a line with the following linear equation: 1/5x-6

B is -6

What is the y-intercept: Column x: 2, 4, 6, 8; Column y: 12, 8, 4, 0

The y-intercept is 16

What is the y-intercept: Column x: 6, 9, 12, 15; Column y: 5, 10, 15, 20

The y-intercept is -5

What is the y-intercept: Column x: 10, 11, 12, 13; Column y: -3, 0, 3, 6

The y-intercept is -33

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