The scale factor is 4 since 8 divided by 2 is 4
3 and four sevenths bcs 25divided by seven is 3r4
Answer:
<u>It</u><u> </u><u>is</u><u> </u><u>3</u><u>y</u><u> </u><u>=</u><u> </u><u>4</u><u>x</u><u> </u><u>+</u><u> </u><u>1</u><u>0</u>
Step-by-step explanation:
Let's first get the slope of the curve.
[ slope is the derivative of the equation ]

introduce dy/dx :

make dy/dx the subject:

At point (-1, 2):

but a tangent has the same slope as the curve:

m is the slope
c is the y-intercept
At (-1, 2):

equation:

3 launchers + shipping = $50
shipping = $5
so to find the price of just the launchers we do $50-$5=$45
so 3 ballons = $45
divide be 3 to find the price of one launcher $50 / 3 = $15