Write the equation of a line perpendicular to the given line and passing through the given point. y=3x+3(-1,-1) step by step

ANSWER

EXPLANATION

The given line is

The given point is

The slope of the given line is

We found this by comparing

to

If two lines are perpendicular, then one is the negative reciprocal of the other.

Hence the slope of the required line is

Using the point-slope formula or otherwise, we can find the required equation.

We substitute the slope and point to get:

let soccer = x and golf = y

part a

1st equation: x + y = 125

2nd equation: x = y +45

part b

replace x in the 1st equation with the 2nd one:

y + 45 + y = 125

simplify:

2y + 45 = 125

subtract 45 from each side:

2y = 80

divide both sides by 2:

y = 80/2

y = 40

she plays golf for 40 minutes.

part c

no because she plays soccer for 45 minutes longer than golf 40 +45 =   85 minutes, not 80 minutes.

answer: c

because if you look at the chart you can see a pattern and compare it to the question he simplify out your

but i think the formula is f(x)=6x