Katrina is asked to simplify the expression -3a-4 b-2 (5 a-7 b). She writes:
-3a-4b-2 (5a-7 b) = -3 a- 4 b-10 a + 14 b Which property allows her to do this? the associative property the commutative property the distributive property the additive identity property

Distributive property. The -2 was distributed to the terms inside the parentheses, leaving Katrina with (-10a + 14b) along with the given -3a - 4b

step-by-step explanation:

let

we know that

the y-intercept is the y-coordinate of the point when the value of x is equal to zero

so

the y-coordinate of the point a is the y-intercept

the answer part a) is

the value of y-intercept is

part b) find the slope m

we know that

the value of the slope is equal to

substitute the values

therefore

the answer part b) is

the value of the slope is equal to

the general answer is

the slope is

the value of y-intercept is

i dont know men

step-by-step explanation: