Finding Y Intercept from Two Points

What is the y-intercept of this graph?

• (0,1)

• (0,-2)

• (0,0)

• (0,3)

What are the x- and y- intercepts, respectively, on this graph?

• (0,5), (0,5)

• (5,0), (5,0)

• (5,0), (0,5)

• (0,0), (5,0)

Which ordered pair could represent a y-intercept on a graph?

• (6, 0)

• (0, 4)

• (-1, 3)

• (2, 0)

Remember equations are written as y=mx+b. Create the equation by finding the slope from rise/run and the y-intercept by looking at where it crosses the y-axis. You can also create an equation by making a List & Spreadsheet, Data & Statistics, Menu 4, 6, 1.

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Tags

AI.9.2.B

A line passes through the coordinates (2,6) and (3,3). What is the y-intercept of this line?

• b = -9

• b = -6

• b = 6

• b = 12

Answer explanation

To find the y-intercept, insert the value for slope in for m and one of the coordinates in for x and y. Use the equation y = mx + b and solve for b. 

A line passes through the coordinates (4,5) and (6,2). What is the y-intercept of this line?

• b = -12

• b = -6

• b = 11

• b = 12

Answer explanation

To find the y-intercept, insert the value for slope in for m and one of the coordinates in for x and y. Use the equation y = mx + b and solve for b. 

Find the y-intercept of the line that passes through the given  pair of points:  (-2, -3), (4, 3)

• b = 3

• b = 2

• b = 1

• b = -1

What is the y-intercept for the function that passes through the points (24, 28) and (8, 8)?

Write the y-intercept for the function that passes through the points (−2, 6) and (2, 7). Change it to a decimal.

Find the slope and y-intecept of (-3,-8) and (2, 7)

Slope is ​ (a)   and the y-intercept is ​ ​ (b)   .

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• -1/5
• -1
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