Answer:
10x^2 -18
Step-by-step explanations
since f(x) is becoming the new x then youd subtitute the equation into the x of the g(x) equation. which would be 5(2x^2 -5) +7 which is 10x^2 -25 +7.and you'd simplify from there.
Answer:
C
Step-by-step explanation:
Answer:
Number 7 is the last one which is 5x+6=8x-15. The answer to number 8 is x=7.
Step-by-step explanation:
5x+6=8x-15
-5x+15 -5x+15
--------------------
21 = 3x
----- -----
3 3
x=7
Answer:
6x
Step-by-step explanation:
8x-2x
Answer:
-5
Step-by-step explanation:
<u>Slope- intercept form:</u>
y= mx +c, where m is the slope and c is the y-intercept
Since the given equation is already in the slope-intercept form, we can identify its slope by looking at the coefficient of the x term. Here the coefficient is -5, thus the slope of the given line is also -5.
Parallel lines have the same slope. Thus, the slope of the line that is parallel to y= -5x +7 will have a slope of -5.