Question

What are the x- and y – intercepts of the following equation: y = 60x + 300

Answers:
(0, 300), (-5, 0)
(0, 300), (0, -5)
(300, 0), (5, 0)
(300, 0), (0, 5)

Answer 1

To find the x-intercept.....replace 'y' in your equation with 0....and solve for 'x'

To find the y-intercept....replace the 'x' in your equation with 0...and solve for 'y'

Answer 2

so x= 60(0)
& y=0
@johnweldon1993

Answer 3

Not quite

y-intercept = replace 'x' with 0 so

y = 60x + 300

After replacing we have

y = 60(0) + 300

simplify

y = 0 + 300

or just

y = 300

Answer 4

And

x-intercept = replace 'y' with 0 so

y = 60x + 300

After replacing...

y = 0 + 300 (simplified)

or just y = 300

Answer 5

No you replaced the 'x' with 0 again

it should have been

y = 60x + 300

replace the 'y' with 0 so

0 = 60x + 300

Now solve for 'x'

I'll get you started

60x = -300

x = ...?

Answer 6

60(0) ???

Answer 7

OR -300

Answer 8

No now you just solve for 'x'

60x = -300

divide both sides by 60

x = -5


Here let me do it again

You have the equation

\[y = 60x + 300\]

To find the y-intercept....you replace the 'x' with 0....because at the y-intercept on a graph x DOES = 0 right?

so

After replacing the 'y' in the equation with 0....we have

\[0 = 60x + 300\]

Now we just solve for 'x'

Subtract 300 from both sides...

\[60x = -300\]

And divide both sides of the equation by 60

\[x = -5\] So this is your x-intercept


To solve for the y-intercept...we replace the 'x' in the equation with 0...and solve for 'y'

After replacing we get

\[y = 60(0) + 300\]

Now we know 60 times 0 is 0 so this is simply

\[y = 300\]

Does that make any more sense?

Answer 9

yes thank you so much .... ! @johnweldon1993

Answer 10

No problem! So what would be your answer choice?

Answer 11

A

Answer 12

Good work!

Answer 13

thnx