Answer: 12
Step-by-step explanation:
f(2.5) = 2 x (2.5)^2 - 3 x 2.5 + 7
= 2 x 6.25 - 7.5 + 7
= 12.5 -7.5 + 7
= 5 + 7
= 12
Hope this helps!
Answer:
y = -2x - 6
Step-by-step explanation:
We know that the slopes of the lines are equal when the lines are parallel to each other.
So, the equation of the given line is<u> y = -2x + 2.</u>
Here,
y = mx + c
y = -2x + 2
slope ⇒ m ⇒ -2
Therefore, the slope of the new line will be ( - 2 ).
<u>And now we have to find the y-intercept ( c ).</u>
For that let us use the given coordinate.
( -6 , 6 ) ⇒ ( x , y )
To find the y-intercept we have to make c the subject of the equation y mx + c.
Also, we have to replace m with ( - 2 ) as the slope of the new line is -2.
<u>Let us solve it now.</u>
y = m x + c
6 = -2 × -6 + c
6 = 12 + c
6 - 12 = c
-6 = c
Now we have found that,
m ⇒ - 2
c ⇒ -6
<u>And now let us write the equation of the line.</u>
y = m x + c
<u>y = -2x - 6</u>
Answer:
95 is the answer I took the test