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tangare [24]
3 years ago
9

A. m=3h-24B. m=3h+24C. m=8hD. m=8h+8please help me

Mathematics
1 answer:
jolli1 [7]3 years ago
4 0
Formular for line graph is
y=mx+b

Find the gradient first
{ \frac{y1-y2}{x1-x2} } \\ \\ = { \frac{0-80}{0-10} } \\ \\ = { \frac{-80}{-10} } \\ \\ = 8

Substitude the gradient to the formular

80=8(10)+b \\ \\ b=0

∴ m=8h is the equation of the graph.

Answer is C.
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Find the input (x) of the function y=5x-3 if the output (y) is 32
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Step-by-step explanation:

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Given the equation 4x + 7 = 3(2x − 5), solve for the variable. Explain each step and justify your process. B. Sam solved a simil
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Equation: 4x + 7 = 3(2x - 5)

Step-by-step solution:

• Expand brackets

-> 4x + 7 = 6x - 15

• Move x variable to a side and the numbers to another

-> 4x - 6x = -15 - 7

• Solve

-> -2x = -22

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-> -(-2x) = -(-22)
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• Divide both sides by 2

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-> Put x = 11 in original equation
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I don't know Sam's equation so I'm not gonna answer that.
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