The answer to that is 0.80 which is f because you convert the answer like you would do normal equations
0%. You can't pick a 3 then pick a 3 again, as there is only one 3 available to be picked. 0/1
<span>What is the equation for the line of symmetry for the graph of the functiony=-4x^2+6x-8?
</span><span>C.
x=3/4</span>
Y=x+2 is 4x-4y=-8 in slope intercept form. Answer is y=x+2.
Let x = number of problems on test
If he got 14 wrong, then x - 14 is the number correct.

x - 14 = .72x
.28x - 14 = 0
.28x = 14
x = 50
The test consisted of 50 problems.