What is the sum or difference 4x10 – 9x10 (1 point) –5x10 –5x20 –36x10 –36x20 this is the cca test i need all the answers this is the first 2

(a)

Both terms and are like terms

They have same exponent

So we add or subtract the coefficents

4 - 9 is -5

=

(b)

Combine like terms by adding or subtracting the coefficient of like terms

look at the picture.

y-intercept for the function on a picture is 4 → point (0, 4).

y-intercept for the function

is for x = 0. substitute:

y-intercept is 8 → point (0, 8).

step-by-step explanation: