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,
h(x) = -7x + 10; h(x) = 3
[tex]h(x) = -7x+10\\3 = -7x+10\\3-10 = -7x+10-10\\-7 = -7x[/tex]
Dividing both sides by -7
[tex]\frac{-7x}{-7} = \frac{-7}{-7}\\x = 1[/tex]
r(x) = 4/5x+7; r(x) = -5
[tex]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[/tex]
Keywords: Functions
Learn more about functions at:
- brainly.com/question/1406585
- brainly.com/question/1414350
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