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vesna_86 [32]
3 years ago
14

Helppppp plzzzzz helpppppp

Mathematics
1 answer:
Reika [66]3 years ago
4 0

Answer:

A

Step-by-step explanation:

The equation can be rearranged to slope intercept form of

y = 4x - 2

We know that the y-intercept is -2 because it is the leftover part, and the slope is 4 because it is 4x.

You can plug in an x-value from the table into the equation, and if it is correct, all the values should end up with the same and correct y-value.

-5 times 4 is -20

-20 -2 = -22.

Correct so far

0 times 4 is 0.

0 - 2 = -2.

Correct so far.

3 times 4 is 12.

12 - 2 = 10.

Correct!

Checking B:

-22 times 4 = -88.

-88 - 2 = -90.

Wrong.

Checking C:

-5 times 4 = -20.

-20 - 2 = -22.

Wrong.

It must be A

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We are given a function f ( x ) defined as follows:

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6 0
1 year ago
Help with math please.
lys-0071 [83]
Hello,

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Now let's find the y-intercept by using the formula of point-slope form, 
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Let's plug the numbers in: y-6 = -3 (x-4). Let's distribute -3 to the parenthesis, and after that it should simplify to: y-6 = -3x + 12. To get "y" by itself, add 6 to both sides: y = -3x +18. We have finally found the slope-intercept equation for those two points (4,6) and (5,3). To then find the y-intercept in this equation, it would be the 18, because -3 is the slope, so that makes 18 the y-intercept.

In conclusion, the rate of change is -3 and the y-intercept is 18. 

I hope this helps!

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