Question

Can some answer these math questions asap thanks

Answer 1

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

$(-3x)63=3x+7y (-3x)\\(\frac{1}{7}) 7y=(-3x+63)(\frac{1}{7} )\\y=-\frac{3x}{7} +9$

(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 $\frac{1}{7}$)

Then plugging x=0 and solve for y, which in this case, y=9

$y=\frac{-3(0)}{7} +9\\y=9$

(For the graphing) Turn 63=3x+7y into a slope intercept form, which is $y=-\frac{3x}{7} +9$ and graph from there