Well, is namely their difference, so, let's first convert the mixed fractions to "improper", and subtract.
Hello:<span>
the equation is : y = ax+b
the slope is a : a×(4/3) = -1......(
perpendicular to a line with a slope of 4/3) because : 4x-3y =8...y=(4/3)x-8/3 ) </span>
<span>
a = -3/4
y=(-3/4)x+b
the line that passes through (3, -2) :- 2 =
(-3/4)(3)+b
b =1/4
<span> the equation is : y = (-3/4)x+1/4</span></span>
3+5(x-4)
= 3 + 5x - 20
= 5x - 17
3(x-6) = -12
3x - 18 = -12
3x = 6
x = 2
Answer:
B. -4
Step-by-step explanation:
We want to find x such that f(x)=18.
We need to therefore solve 9x+54=18 forx.
9x+54=18
Divide both sides by 9:
(9x+54)/9=18/9
9x/9+54/9=18/9
Simplify:
x+6=2
Subtract 6 on both sides:
x=2-6
Simplify
x=-4.
So f(-4) should have value 18.
Let's check.
f(x)=9x+54
f(-4)=9(-4)+54
f(-4)=-36+54
f(-4)=18
So the answer is B.
