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What is the y-intercept of the function f(x)=4 – 5x?
A:-5
B:-4
C:4
D:-5

2 Answers

4 votes

Answer: Option C

(C) 4

Explanation:

use the slope-intercept form y=mx + B

to find the slope m

and Y to intercept B

slope -5

Y-intercept (0,4)

User Thomas Daugaard
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5.4k points
1 vote

Answer: option C is the correct answer

Explanation:

The y-intercept of the function is the point on the y or vertical axis at which the straight line cuts through it. The value on the y axis is read off as the y-intercept .

The equation of a straight line is modelled using the slope - intercept equation of

y = mx + c

Where m is the slope( change in value of y/ change in value of x.

c = the y-intercept

Looking at the function given,

f(x)=4 – 5x? Where f(x) is the same as y in our slope intercept equation.

Rearranging the function, it becomes

f(x)= – 5x +4

The intercept is 4

Option C is the correct answer.

User Alex Beugnet
by
5.5k points