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A function f(x) is graphed.

What is the slope of the function?
ma
What is the y-intercept of the function?
b.
Which equatich represents the graph of the function?

A function f(x) is graphed. What is the slope of the function? ma What is the y-intercept-example-1

2 Answers

5 votes

Answer:

slope:1/2

y intercept:-1/2

equation of the line: y=1/2x-1/2

Explanation:

choose two points from the line( I chose (3,1) and (-1,-1)) and then using y1-y2/x1-x2, do 1 - -1/3 - -1 which is 2/4 simplified to 1/2. the slope is 1/2.

now to find the y intercept, you just have to plug in the numbers from one of the sets of points you chose and your slope using y = mx +b(I will be using the point (-1,-1)). equational look like this: -1=1/2•-1+b

since b is the y intercept, solve for b and you get b= -1/2.

so nowsince you know the slope and the y intercept you just plug it in to the equation

y = mx + b and you get y=1/2x-1/2.

User Djuth
by
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6 votes
The slope is 2. The y-intercept is 1. The equation is y=2x +1
User Akhil Arjun
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