If f(x) = 5x^2– 3 and f(x + a) = 5x^2+ 30x + 42, what is the value of a ?
1 answer:
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(-2,7) and (14,21)
Find the slope by using the formula
Plug in the numbers.
Write it in point slope form first
y - y1 = m(x - x1)
y - 7 = 7/8(x - -2)
y - 7 = 7/8x + 1.75
+ 7 +7
y = 7/8x + 8.75
Our final equation would be: <span>y = 7/8x + 8.75</span>
Find the slope by using the formula
Plug in the numbers.
Write it in point slope form first
y - y1 = m(x - x1)
y - 7 = 7/8(x - -2)
y - 7 = 7/8x + 1.75
+ 7 +7
y = 7/8x + 8.75
Our final equation would be: <span>y = 7/8x + 8.75</span>
Answer:
The measures of the angles are 50° and 130°
Step-by-step explanation:
Let
x ----> the measure of one angle
y ----> the measure of the other angle
we know that
If two angles form a linear pair , then their sum is equal to 180 degrees
-----> equation A
----> equation B
substitute equation B in equation A
solve for y
Find the value of x
The measures of the angles are 50° and 130°