C = 8x + 5y
-5y + c = 8x
-5y = -c + 8x
y = c - 8x / 5
2nd option
Answer:
(x - 8)² - 64
Step-by-step explanation:
x²- 16x
x² - 2x(8) + 8² - 8²
(x - 8)² - 64
Answer:
3.) 63=3x+7y
4.) Y-intercept is 9
Step-by-step explanation:
(For 3) For every time a person gets a touchdown, x represents that
for every time a person person scored a successful extra-point attempt, y represents that.
And they team scores 63, so....
the equation would look like this
63=3x+7y
(For 4) You find the y-intercept by turning the standard form equatio into the slop intercept form
(Helper's note, multiplying by its reciprocal is the same as dividing it by a whole number, in the case dividing the number by 7 is the save as multiplying the number by
)
Then plugging x=0 and solve for y, which in this case, y=9

(For the graphing) Turn 63=3x+7y into a slope intercept form, which is
and graph from there
23 can round to 20 and 21 can also round to 20 so all u do is 20x20=400 so 400 is your estimated answer