Can you tell us what the expression is in the question?
<span>-7x + 8y = -9
8y = 7x - 9
y = 7/8x - 9/8
so line </span><span>-7x+8y=-9 has slope = 7/8
</span><span>perpendicular lines, slope will be opposite and reciprocal
so new line has slope = -8/7
passing thru </span><span>(2,-5)
</span>y = mx + b
-5 = -8/7(2) + b
-5 = -16/7 + b
b = -5 + 16/7
b = -35/7 + 16/7
b = -19/7
equation
y = -8/7x - 19/7
hope it helps
The answer is 1, each number has 8 added to it.
Also, i hated IXL so goodluck-
Jenny = 8x
Clark's = x
8x + x = 36
9x = 36
9x/9 = 36/9
x = 4
Jenny = 8 x 4 = 32
So Clark's ball went the distant of 4 and Jenny's ball went 32
Answer _
It is perpendicular to the equation y=15x-3.