Answer:
Step-by-step explanation:
4.50 divides by 5 than times the answer by 7
Its 8/10 or 12/15 because 4 times 2 is 8 and 5 times 2 is ten
For h(x) = -7x + 10, x =1
For r(x) = 4/5x+ 7 , x = -15
Step-by-step explanation:
in order to find the value of x on which the functions will have given values, we will put the functions equal to the given values
So,
<u>h(x) = -7x + 10; h(x) = 3</u>
![h(x) = -7x+10\\3 = -7x+10\\3-10 = -7x+10-10\\-7 = -7x](https://tex.z-dn.net/?f=h%28x%29%20%3D%20-7x%2B10%5C%5C3%20%3D%20-7x%2B10%5C%5C3-10%20%3D%20-7x%2B10-10%5C%5C-7%20%3D%20-7x)
Dividing both sides by -7
![\frac{-7x}{-7} = \frac{-7}{-7}\\x = 1](https://tex.z-dn.net/?f=%5Cfrac%7B-7x%7D%7B-7%7D%20%3D%20%5Cfrac%7B-7%7D%7B-7%7D%5C%5Cx%20%3D%201)
<u>r(x) = 4/5x+7; r(x) = -5</u>
![r(x) = \frac{4}{5}x +7\\-5 = \frac{4}{5}x +7\\-5-7 = \frac{4}{5}x\\-12 = \frac{4}{5}x\\x = -12 * \frac{5}{4}\\x = -15](https://tex.z-dn.net/?f=r%28x%29%20%3D%20%5Cfrac%7B4%7D%7B5%7Dx%20%2B7%5C%5C-5%20%3D%20%5Cfrac%7B4%7D%7B5%7Dx%20%2B7%5C%5C-5-7%20%3D%20%5Cfrac%7B4%7D%7B5%7Dx%5C%5C-12%20%3D%20%5Cfrac%7B4%7D%7B5%7Dx%5C%5Cx%20%3D%20-12%20%2A%20%5Cfrac%7B5%7D%7B4%7D%5C%5Cx%20%3D%20-15)
<u></u>
Keywords: Functions
Learn more about functions at:
#LearnwithBrainly
<span>4x+2y=-6
2y = -4x - 6
y = - 2x - 3
slope = -2
</span><span>y-intercept when x = 0
so y = -3
answer
slope = -2
</span><span>y-intercept (0,-3)</span>
you can buy 5 books and have a $1 left over I think Hope this a helps! :D