Staar Review Practice 8th grade Math part 1

Front

Is the relation a function? Why?

Back

No, because the x-value 11 has two y-values pair with it.

Front

What equation can be used to find y, the total price Jacob must pay in dollars for 3 new video games at $55 each and x used video games at $12 each?

Back

y = 12x + 165

Front

What is the solution to the system of equations given in the problem?

Back

(2,2)

Front

What does 'b' represent in the equation y=mx+b?

Back

y-intercept

Front

What is the solution to the system of equations given in the problem?

Back

(5,2)

Front

What is a function?

Back

A relation where each input (x-value) has exactly one output (y-value).

Front

What is the slope in the equation y=mx+b?

Back

The coefficient 'm' represents the slope of the line.

Front

How do you determine if a relation is a function using a graph?

Back

If any vertical line intersects the graph at more than one point, it is not a function.

Front

What is the y-intercept of a linear equation?

Back

The point where the line crosses the y-axis (x=0).

Front

What does it mean to solve a system of equations?

Back

Finding the values of the variables that satisfy all equations in the system.